body {
  margin: 0;
  padding: 0;
  font-family: sans-serif;
}
#components-form-demo-normal-login .login-form {
  max-width: 300px;
}
.stockRoom{
  height:110px;
  line-height:110px;
  width:300px;
  text-align:center;
  float:left;
  border:1px solid #797979;
  margin-top:140px;
  margin-left:100px;
  border-radius:5px;
  cursor: pointer;
}
.stockRoom:hover{
  border:1px solid #1890ff;
  color:#1890ff;
}